Number Base Converter

What is this tool?

This number base converter translates integers between base 10, base 16, base 8, and base 2. These bases show up constantly in programming: decimal for human-facing quantities, hexadecimal for bytes and memory values, octal for permissions, and binary for flags.

The converter parses the input as an integer in the selected radix and renders equivalent values with familiar prefixes: 0x for hex, 0o for octal, and 0b for binary. It is not intended for floating-point conversion, signed integer overflow analysis, or IEEE 754 bit inspection.

Use it when checking masks, protocol values, permissions, color channels, or constants that move between human-readable and machine-oriented notation.

How to use

1. Choose the base of the input value: decimal, hexadecimal, octal, or binary.
2. Enter an integer. Common prefixes such as 0x, 0o, and 0b are accepted.
3. Read the converted values in all four supported bases.
4. Copy the representation you need for code, documentation, permissions, or debugging.

Examples

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